Hi noonzilla,
1. Currently there is no way to resume an AI game, sorry. I think that is something that might be added with the single player update.
2. We agree that the ball can be hard to see and we're going to improve that.
3. Thanks for letting us know.
4. Not by default. If you'd like to help us by enabling crash reporting please follow this guide published by GitHub – https://help.github.com/articles/getting-a-crash-dump
Please be aware that turning this on can quite quickly use up a lot of disk space.

Regarding the crash dump - I thought there would be some kind of dump or log generated by the game I could use. Sure I've seen people post some event logs or similar on here? Thanks for the link but I don't have that much hd space so probably won't use that method.